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BUG: KCSAN: data-race in dentry_unlink_inode / step_into_slowpath

write to 0xffff88810719f570 of 8 bytes by task 23202 on cpu 1:
 __d_clear_type_and_inode fs/dcache.c:421 [inline]
 dentry_unlink_inode+0x65/0x290 fs/dcache.c:476
 d_delete+0x164/0x180 fs/dcache.c:2774
 d_delete_notify+0x32/0x100 include/linux/fsnotify.h:379
 vfs_unlink+0x287/0x4a0 fs/namei.c:5682
 filename_unlinkat+0x1db/0x400 fs/namei.c:5737
 __do_sys_unlink fs/namei.c:5772 [inline]
 __se_sys_unlink+0x2b/0xe0 fs/namei.c:5769
 __x64_sys_unlink+0x1f/0x30 fs/namei.c:5769
 x64_sys_call+0x18ee/0x2550 arch/x86/include/generated/asm/syscalls_64.h:88
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff88810719f570 of 8 bytes by task 2979 on cpu 0:
 step_into_slowpath+0x12c/0x4c0 fs/namei.c:2113
 step_into fs/namei.c:2158 [inline]
 walk_component fs/namei.c:2294 [inline]
 lookup_last fs/namei.c:2795 [inline]
 path_lookupat+0x2eb/0x4c0 fs/namei.c:2819
 filename_lookup+0x18f/0x390 fs/namei.c:2848
 do_readlinkat+0x74/0x2f0 fs/stat.c:575
 __do_sys_readlink fs/stat.c:609 [inline]
 __se_sys_readlink fs/stat.c:606 [inline]
 __x64_sys_readlink+0x47/0x60 fs/stat.c:606
 x64_sys_call+0x1d41/0x2550 arch/x86/include/generated/asm/syscalls_64.h:90
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0xffff8881413e4b60 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 2979 Comm: udevd Tainted: G        W           syzkaller #0 PREEMPT(lazy) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
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